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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cpu_test
import (
"runtime"
"testing"
"golang.org/x/sys/cpu"
)
func TestAMD64minimalFeatures(t *testing.T) {
if runtime.GOARCH == "amd64" {
if !cpu.Initialized {
t.Fatal("Initialized expected true, got false")
}
if !cpu.X86.HasSSE2 {
t.Fatal("HasSSE2 expected true, got false")
}
}
}
func TestAVX2hasAVX(t *testing.T) {
if runtime.GOARCH == "amd64" {
if cpu.X86.HasAVX2 && !cpu.X86.HasAVX {
t.Fatal("HasAVX expected true, got false")
}
}
}
func TestAVX512HasAVX2AndAVX(t *testing.T) {
if runtime.GOARCH == "amd64" {
if cpu.X86.HasAVX512 && !cpu.X86.HasAVX {
t.Fatal("HasAVX expected true, got false")
}
if cpu.X86.HasAVX512 && !cpu.X86.HasAVX2 {
t.Fatal("HasAVX2 expected true, got false")
}
}
}
func TestARM64minimalFeatures(t *testing.T) {
if runtime.GOARCH != "arm64" || runtime.GOOS == "ios" {
return
}
if !cpu.ARM64.HasASIMD {
t.Fatal("HasASIMD expected true, got false")
}
if !cpu.ARM64.HasFP {
t.Fatal("HasFP expected true, got false")
}
}
func TestMIPS64Initialized(t *testing.T) {
if runtime.GOARCH == "mips64" || runtime.GOARCH == "mips64le" {
if !cpu.Initialized {
t.Fatal("Initialized expected true, got false")
}
}
}
// On ppc64x, the ISA bit for POWER8 should always be set on POWER8 and beyond.
func TestPPC64minimalFeatures(t *testing.T) {
// Do not run this with gccgo on ppc64, as it doesn't have POWER8 as a minimum
// requirement.
if runtime.Compiler == "gccgo" && runtime.GOARCH == "ppc64" {
t.Skip("gccgo does not require POWER8 on ppc64; skipping")
}
if runtime.GOARCH == "ppc64" || runtime.GOARCH == "ppc64le" {
if !cpu.PPC64.IsPOWER8 {
t.Fatal("IsPOWER8 expected true, got false")
}
}
}
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